Waring, Rob Space walk/ Rob Waring. - Boston : Heinle/Cengage Learning 2010 - 24p.:ill.( some pic.&col.)21cm. This is ELS. - Footprint reading library . ISBN: 9781424012244 LC Class. No.: PE1128 .W276 2010 Dewey Class. No.: PE1128 .W276 2010 National Library of Medicine Call No.: PE1128 .W276 2010